FDS-Initium, Flight Data Pressure Scanning System
- Unparalleled Long Term Stability
- Advanced Digital Temperature Compensation
- Individual Offset & Thermal Zero Compensation
- Automatically Switched Reference Pressures
- Isolated Purge Capability (Option)
- Temperature Sense Output (Option)
The Initium – Flight Data System (FDS) is a ruggedized fully integrated instrument consisting of a dual microprocessor-based Data Acquisition and Control Unit (DACU) and Digitally Temperature Compensated Electronic Pressure Scanners (ESP) designed specifically for onboard vehicle pressure monitoring. The FDS is capable of operating up to eight miniature 32 or 64 channel pressure scanners, equipped with Digital Temperature Compensation (DTC). The FDS will perform all pressure data acquisition duties and calculate engineering unit conversions internally while transmitting temperature corrected pressure data back to the host over an UDP or TCP/IP Ethernet connection in-flight.
The FDS utilizes calibration data stored on-board the ESP Scanners to correct for non-linearity and thermal shifts while an on-line re-zero corrects for any zero drift of the sensors. The FDS supports all DTC Scanner functions including programmable deranging capability, sensor temperature readouts, and internal calibration valve shift control and position detection. “Live @ Power up” mode uses stored scanner configurations to greatly reduce initialization times and automatically return to data acquisition, perfect for unintended power cycle events. Communication is via TCP/IP protocol for configuration while acquired data is transmitted via UDP Multicast direct to the user’s data recording hardware or Host Group (IGMP).
Type | Scanner |
Interface | ESP-DTC |
# of Scanners | 8 |
Output | Ethernet |
Excitation | 18 - 36 V DC |
Min Temperature | 0 °C |
Max Temperature | 70 °C |
FDS Initium | Flight Data System, up to 8 scanners |
DTC Initium | up to 8 scanners |
Initium_FDS Datasheet |
In-Vehicle Pressure Data System (FDS1) App Note |
- Differential or Vented Gauge
- Dry Noncorrosive Gases
- Proof Pressure 4 Times Rated Pressure (≤ 30 psi)
- Proof Pressure 1.5 Times Rated Pressure (> 30 psi)
- 0.040" or 0.063" OD Stainless Steel Tubulation
- Digital Temperature Compensation (Option)
Type | Scanner |
# of Channels | 32 |
Operational Mode | Differential |
Full Scale | 1 psi, 2.5 psi, 5 psi, 10 psi, 15 psi, 30 psi, 45 psi, 50 psi, 100 psi |
Output | ESP, ESP-DTC |
Precision | ±0.03 % FS, ±0.06 % FS, ±0.15 % FS |
- Differential or Vented Gauge
- Dry Noncorrosive Gases
- Proof Pressure 4 Times Rated Pressure (≤ 30 psi)
- Proof Pressure 1.5 Times Rated Pressure (> 30 psi)
- 0.040" or 0.063" OD Stainless Steel Tubulation
- Digital Temperature Compensation (Option)
Type | Scanner |
# of Channels | 64 |
Operational Mode | Differential |
Full Scale | 1 psi, 2.5 psi, 5 psi, 10 psi, 15 psi, 30 psi, 45 psi, 50 psi, 100 psi |
Output | ESP, ESP-DTC |
Precision | ±0.03 % FS, ±0.06 % FS, ±0.15 % FS |
- Support for 8 DTC Series ESP Scanners, 32 or 64 port Scanners
- For up to 512 Pressure Channels
- ±0.05% FS Precision after Rezero
- 1000 Hz per Channel Throughput in Engineering Units for 128 ports
- Syncronized Data with Accelerometers, Wet Pressures, etc.
- Auto-negotiating 10/100 Base-T Ethernet Interface
- Compact Robust Package, with an optional Protective Enclosure
- Comprehensive Applications Utility Software
Type | Scanner |
Interface | ESP-DTC |
# of Scanners | 8 |
Output | Ethernet |
Excitation | 18 - 36 V DC |
Min Temperature | 0 °C |
- ±0.05% Accuracy
- 100 Hz EU Throughput
- Auto-negotiating 10/100/1G Base T Ethernet - TCP and UDP Protocol
- Pressure Ranges up to 850 psid (5860 kPa)
- Rezero, Purge and Leak Check Functionality
- Triple Scan List Capability
- Hardware and Software Initiated Data Acquisition
- Typical Applications Turbine Engine Research & Turbomachinery Test Stands
Type | Scanner |
# of Scanners | 8 |
Operational Mode | Absolute, Differential |
Full Scale | 1 psi, 2.5 psi, 5 psi, 10 psi, 15 psi, 30 psi, 45 psi, 100 psi, 250 psi, 500 psi, 750 psi, 850 psi |
Output | Ethernet |
Precision | ±0.05 % FS |